Variable tle->epoch Overflows

[mbineshaq]

tle->epoch is implemented as 'long', however, it stores UNIX Time in milliseconds which cause it to over flow. Changing the type in the TLE struct to 'long long' as well as updating the last a few lines in the parseEpoch() function does the trick.

Mind you I am using it on an STM32 Arm Cortex MCU. This could be a portabilty issue where the code runs fine on other machine but not this one.